Open AccessRapid initiation of quetiapine well tolerated as compared with the conventional initiation regimen in patients with schizophrenia or schizoaffective disorders
Author(s) -
Hsiao ChengCheng,
Chen KunPo,
Tsai ChangJer,
Wang LiangJen,
Chen ChihKen,
Lin ShihKu
Publication year - 2011
Publication title -
the kaohsiung journal of medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.439
H-Index - 36
eISSN - 2410-8650
pISSN - 1607-551X
DOI - 10.1016/j.kjms.2011.06.014
Subject(s) - medicine , quetiapine , tolerability , schizoaffective disorder , regimen , clinical global impression , schizophrenia (object oriented programming) , rating scale , positive and negative syndrome scale , adverse effect , psychiatry , psychosis , psychology , developmental psychology , alternative medicine , pathology , placebo
A 2‐week, randomized, parallel‐group open trial was designed to evaluate the safety and tolerability of a rapid initiation regimen with a higher dose of quetiapine (up to 800 mg/d by Day 4) than that used in the conventional initiation regimen of quetiapine (up to 400 mg/d by Day 5) in patients with schizophrenia or schizoaffective disorders. Forty patients were recruited and randomly (3:1) assigned to either the group with rapid initiation of quetiapine or the group with conventional initiation. At the end of the investigation, the difference between the groups in the incidence of adverse events was not significant; a significant drop in the Barnes Akathisia Rating Scale and Simpson‐Angus Scale scores was observed only in the group with the rapid initiation regimen. The groups did not differ in terms of improvement on the Clinical Global Impression—Severity of Illness and Positive and Negative Syndrome Scale at the end of the study. The results of our 2‐week study suggest that rapid initiation with a higher dose of quetiapine (up to 800 mg/d by Day 4) is well tolerated in patients with schizophrenia or schizoaffective disorders and does not compromise efficacy relative to the conventional initiation.